M1.7 earthquake 34 km SSW of Unalaska, Alaska

Magnitude

1.7 (ml), micro

Local time

Fri, Jul 31, 2020, 1:00 AM AKDT

UTC

2020-07-31 09:00:52 UTC

Depth

74.9 km (46.5 mi), intermediate-depth

Epicenter

53.585° N, 166.736° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Stations used

14

• Unalaska, AlaskaPopulation 4,491. Forecast35 kmSSW

After

1. 1.513 km W of Dutch Harbor, AlaskaSat, Aug 1, 7:38 AM AKDT · 2249 days ago · 7 km deep · 32 km away
2. 1.8100 km SE of Unalaska, AlaskaSat, Aug 1, 7:10 PM AKDT · 2249 days ago · 25 km deep · 88 km away
3. 1.696 km SSW of Unalaska, AlaskaSun, Aug 2, 10:03 PM AKDT · 2248 days ago · 40 km deep · 62 km away
4. 1.717 km WSW of Dutch Harbor, AlaskaMon, Aug 3, 6:54 PM AKDT · 2247 days ago · 7 km deep · 28 km away
5. 2.518 km W of Dutch Harbor, AlaskaMon, Aug 3, 6:56 PM AKDT · 2247 days ago · 6 km deep · 32 km away
6. 1.518 km W of Dutch Harbor, AlaskaMon, Aug 3, 6:57 PM AKDT · 2247 days ago · 2 km deep · 33 km away
7. 1.617 km WSW of Dutch Harbor, AlaskaMon, Aug 3, 7:00 PM AKDT · 2247 days ago · 5 km deep · 29 km away
8. 1.671 km SSE of Akutan, AlaskaFri, Aug 7, 4:58 PM AKDT · 2243 days ago · 53 km deep · 91 km away
9. 1.859 km SW of Unalaska, AlaskaSat, Aug 8, 3:38 PM AKDT · 2242 days ago · 73 km deep · 27 km away
10. 1.89 km SSE of Unalaska, AlaskaSun, Aug 9, 7:30 AM AKDT · 2241 days ago · 83 km deep · 28 km away
11. 2.185 km SSW of Unalaska, AlaskaSun, Aug 9, 3:58 PM AKDT · 2241 days ago · 26 km deep · 51 km away
12. 1.774 km SSE of Akutan, AlaskaMon, Aug 10, 9:47 AM AKDT · 2240 days ago · 51 km deep · 90 km away
13. 1.657 km SSE of Unalaska, AlaskaMon, Aug 10, 5:31 PM AKDT · 2240 days ago · 42 km deep · 47 km away
14. 1.677 km SW of Unalaska, AlaskaMon, Aug 10, 6:18 PM AKDT · 2240 days ago · 13 km deep · 48 km away
15. 2.999 km E of Nikolski, AlaskaTue, Aug 11, 5:23 AM AKDT · 2239 days ago · 35 km deep · 77 km away
16. 1.952 km SSE of Unalaska, AlaskaWed, Aug 12, 3:37 AM AKDT · 2238 days ago · 50 km deep · 37 km away
17. 1.812 km WNW of Akutan, AlaskaThu, Aug 13, 9:34 PM AKDT · 2237 days ago · 4 km deep · 81 km away
18. 3.384 km SSW of Unalaska, AlaskaThu, Aug 13, 10:32 PM AKDT · 2237 days ago · 14 km deep · 50 km away
19. 1.614 km WSW of Dutch Harbor, AlaskaFri, Aug 14, 7:18 AM AKDT · 2236 days ago · 7 km deep · 29 km away
20. 1.747 km S of Akutan, AlaskaFri, Aug 14, 2:47 PM AKDT · 2236 days ago · 57 km deep · 66 km away
21. 1.514 km WSW of Dutch Harbor, AlaskaSat, Aug 15, 9:57 AM AKDT · 2235 days ago · 6 km deep · 30 km away
22. 2.626 km S of Unalaska, AlaskaSat, Aug 15, 6:01 PM AKDT · 2235 days ago · 87 km deep · 17 km away
23. 1.975 km SW of Unalaska, AlaskaSun, Aug 16, 2:16 AM AKDT · 2234 days ago · 9 km deep · 45 km away
24. 1.815 km W of Akutan, AlaskaSun, Aug 16, 4:15 AM AKDT · 2234 days ago · 19 km deep · 75 km away
25. 2.216 km W of Akutan, AlaskaSun, Aug 16, 4:16 AM AKDT · 2234 days ago · 21 km deep · 76 km away
26. 2.276 km SSW of Unalaska, AlaskaMon, Aug 17, 3:10 PM AKDT · 2233 days ago · 28 km deep · 43 km away
27. 3.668 km SE of Unalaska, AlaskaMon, Aug 17, 3:24 PM AKDT · 2233 days ago · 38 km deep · 65 km away
28. 1.962 km SW of Unalaska, AlaskaMon, Aug 17, 4:51 PM AKDT · 2233 days ago · 6 km deep · 36 km away
29. 2.061 km SW of Unalaska, AlaskaMon, Aug 17, 8:26 PM AKDT · 2233 days ago · 14 km deep · 37 km away
30. 1.5103 km SSW of Unalaska, AlaskaTue, Aug 18, 2:16 AM AKDT · 2232 days ago · 48 km deep · 69 km away
31. 1.677 km S of Akutan, AlaskaTue, Aug 18, 5:21 AM AKDT · 2232 days ago · 25 km deep · 79 km away
32. 1.681 km SE of Unalaska, AlaskaTue, Aug 18, 4:59 PM AKDT · 2232 days ago · 25 km deep · 77 km away
33. 3.690 km SSE of Unalaska, AlaskaTue, Aug 18, 7:07 PM AKDT · 2232 days ago · 35 km deep · 77 km away
34. 1.714 km WSW of Dutch Harbor, AlaskaWed, Aug 19, 8:41 AM AKDT · 2231 days ago · 6 km deep · 30 km away
35. 1.566 km SW of Unalaska, AlaskaWed, Aug 19, 11:25 PM AKDT · 2230 days ago · 97 km deep · 40 km away
36. 2.588 km E of Nikolski, AlaskaFri, Aug 21, 12:22 AM AKDT · 2229 days ago · 28 km deep · 78 km away
37. 1.514 km WSW of Dutch Harbor, AlaskaSat, Aug 22, 9:43 AM AKDT · 2228 days ago · 10 km deep · 29 km away
38. 1.676 km SSW of Unalaska, AlaskaSat, Aug 22, 4:38 PM AKDT · 2228 days ago · 30 km deep · 43 km away
39. 2.682 km E of Nikolski, AlaskaMon, Aug 24, 11:40 PM AKDT · 2225 days ago · 32 km deep · 94 km away
40. 1.515 km WSW of Dutch Harbor, AlaskaMon, Aug 24, 11:50 PM AKDT · 2225 days ago · 6 km deep · 30 km away
41. 1.877 km E of Nikolski, AlaskaTue, Aug 25, 12:40 AM AKDT · 2225 days ago · 37 km deep · 94 km away
42. 1.814 km WSW of Dutch Harbor, AlaskaTue, Aug 25, 5:36 PM AKDT · 2225 days ago · 8 km deep · 31 km away
43. 1.542 km SW of Unalaska, AlaskaThu, Aug 27, 1:46 PM AKDT · 2223 days ago · 17 km deep · 23 km away
44. 1.861 km WSW of Unalaska, AlaskaFri, Aug 28, 1:00 AM AKDT · 2222 days ago · 10 km deep · 40 km away
45. 1.715 km W of Dutch Harbor, AlaskaFri, Aug 28, 5:19 AM AKDT · 2222 days ago · 7 km deep · 31 km away
46. 2.2103 km SSW of Unalaska, AlaskaSat, Aug 29, 8:09 AM AKDT · 2221 days ago · 78 km deep · 69 km away
47. 1.938 km SW of Unalaska, AlaskaTue, Sep 1, 6:37 AM AKDT · 2218 days ago · 76 km deep · 11 km away
48. 1.684 km SSE of Akutan, AlaskaTue, Sep 1, 9:34 PM AKDT · 2218 days ago · 14 km deep · 100 km away
49. 1.546 km ESE of Unalaska, AlaskaFri, Sep 4, 11:15 PM AKDT · 2214 days ago · 34 km deep · 56 km away
50. 3.1104 km S of Unalaska, AlaskaSat, Sep 5, 2:17 PM AKDT · 2214 days ago · 40 km deep · 72 km away
51. 2.170 km WSW of Unalaska, AlaskaMon, Sep 7, 3:43 AM AKDT · 2212 days ago · 6 km deep · 47 km away
52. 1.614 km SSW of Unalaska, AlaskaTue, Sep 8, 6:17 AM AKDT · 2211 days ago · 82 km deep · 21 km away
53. 1.881 km WSW of Unalaska, AlaskaTue, Sep 8, 8:25 PM AKDT · 2211 days ago · 81 km deep · 56 km away
54. 1.8Fox Islands, Aleutian Islands, AlaskaThu, Sep 10, 11:01 AM AKDT · 2209 days ago · 1 km deep · 86 km away
55. 2.183 km S of Unalaska, AlaskaFri, Sep 11, 3:17 AM AKDT · 2208 days ago · 26 km deep · 50 km away
56. 3.281 km SSW of Unalaska, AlaskaFri, Sep 11, 5:42 AM AKDT · 2208 days ago · 35 km deep · 48 km away
57. 2.929 km SW of Unalaska, AlaskaFri, Sep 11, 7:06 PM AKDT · 2208 days ago · 77 km deep · 10 km away
58. 1.946 km SE of Akutan, AlaskaSat, Sep 12, 1:24 PM AKDT · 2207 days ago · 38 km deep · 95 km away
59. 1.915 km WSW of Dutch Harbor, AlaskaSun, Sep 13, 12:53 PM AKDT · 2206 days ago · 3 km deep · 29 km away
60. 2.378 km NE of Nikolski, AlaskaSun, Sep 13, 5:37 PM AKDT · 2206 days ago · 144 km deep · 93 km away

The first 60 of 77.

Before

1. 1.872 km WSW of Unalaska, AlaskaThu, Jul 30, 9:28 AM AKDT · 2251 days ago · 7 km deep · 50 km away
2. 2.060 km SE of Unalaska, AlaskaThu, Jul 30, 12:19 AM AKDT · 2251 days ago · 32 km deep · 61 km away
3. 1.755 km SSE of Unalaska, AlaskaWed, Jul 29, 3:22 PM AKDT · 2252 days ago · 35 km deep · 36 km away
4. 1.615 km WSW of Unalaska, AlaskaTue, Jul 28, 10:30 PM AKDT · 2253 days ago · 5 km deep · 28 km away
5. 1.616 km WSW of Unalaska, AlaskaTue, Jul 28, 10:10 PM AKDT · 2253 days ago · 7 km deep · 28 km away
6. 1.57 km SSE of Unalaska, AlaskaMon, Jul 27, 9:27 PM AKDT · 2254 days ago · 85 km deep · 30 km away
7. 2.948 km SSW of Unalaska, AlaskaMon, Jul 27, 4:51 PM AKDT · 2254 days ago · 73 km deep · 14 km away
8. 3.073 km S of Unalaska, AlaskaSat, Jul 25, 2:30 AM AKDT · 2256 days ago · 35 km deep · 41 km away
9. 3.187 km SSW of Unalaska, AlaskaSat, Jul 25, 1:29 AM AKDT · 2256 days ago · 35 km deep · 53 km away
10. 2.047 km SSE of Unalaska, AlaskaThu, Jul 23, 3:28 PM AKDT · 2258 days ago · 47 km deep · 37 km away
11. 2.179 km ENE of Nikolski, AlaskaTue, Jul 21, 1:27 AM AKDT · 2260 days ago · 61 km deep · 84 km away
12. 1.977 km SSW of Unalaska, AlaskaMon, Jul 20, 2:17 PM AKDT · 2261 days ago · 26 km deep · 44 km away
13. 3.416 km WSW of Unalaska, AlaskaSat, Jul 18, 7:21 PM AKDT · 2263 days ago · 10 km deep · 24 km away · felt by 1
14. 1.692 km SSW of Unalaska, AlaskaSat, Jul 18, 10:15 AM AKDT · 2263 days ago · 26 km deep · 58 km away
15. 4.374 km S of Unalaska, AlaskaFri, Jul 17, 6:27 PM AKDT · 2264 days ago · 56 km deep · 41 km away
16. 1.623 km WSW of Unalaska, AlaskaTue, Jul 14, 10:04 PM AKDT · 2267 days ago · 4 km deep · 28 km away
17. 1.914 km WSW of Dutch Harbor, AlaskaTue, Jul 14, 8:51 PM AKDT · 2267 days ago · 7 km deep · 30 km away
18. 1.9125 km SSW of Unalaska, AlaskaSun, Jul 12, 7:10 PM AKDT · 2269 days ago · 26 km deep · 91 km away
19. 1.514 km WSW of Dutch Harbor, AlaskaSun, Jul 12, 7:11 AM AKDT · 2269 days ago · 7 km deep · 31 km away
20. 3.0108 km S of Unalaska, AlaskaSat, Jul 11, 6:38 PM AKDT · 2270 days ago · 35 km deep · 75 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak0209setxng. Read Mon, Sep 28, 2026, 6:15 PM UTC.